#include <stdio.h>
#include <string.h>

int main() {
	int m, n;
	char a[5][10] = {"system", "computer", "network", "program", "design"}, t[10];
	for (m = 0; m < 4; m++) {
		for (n = m + 1; n < 5; n++) {
			if (strcmp(a[m], a[n]) > 0) {
				strcpy(t, a[n]);
				strcpy(a[n], a[m]);
				strcpy(a[m], t);
			}
		}
	}
	for (m = 0; m < 5; m++)
		puts(a[m]);
}
